Ladder support for flat-roofed building

Abstract

An attachable ladder support for use on flat-roofed buildings in conjunction with a ladder and winch. The ladder support has a contact member for contacting the flat roof of a building. Connected to the contact member are two connecting members which are attached to the contact member in such a manner that a hoisting space is created between the two connecting members. Each connecting member is provided with an insertable end for insertion into a tubular ladder rung. When used in conjunction with a ladder and a winch, the ladder support makes it possible to hoist heavy loads up to a flat roof of a building.

What is claimed is: 
     
       1. A ladder support for use on flat-roofed buildings in conjunction with a ladder having a ladder rung provided with a ladder rung cavity which is horizontally accessible from either side of the ladder, said ladder support comprising: a building contact member for making contact with a flat roof and a wall proximate to a roof edge;   a first insertable connecting member connected to said building contact member, said first insertable connecting member having an integrally connected bending elbow which forms an insertable end for purposes of achieving a horizontal insertable connection with the ladder rung cavity of the ladder rung on one side of the ladder;   a second insertable connecting member connected to said building contact member in such a manner that a hoisting space is created between said first insertable connecting member and said second insertable connecting member, said second insertable connecting member having an integrally connected bending elbow which forms an insertable end for purposes of achieving a horizontal insertable connection with the ladder rung cavity of the ladder rung on the other side of the ladder; and   wherein said first insertable connecting member has an insertable end inserted into the ladder rung cavity on one side of the ladder and said second insertable connecting member has an insertable end inserted into the ladder rung cavity on the other side of the ladder.   
     
     
       2. A ladder support according to claim 1, wherein: said building contact member is comprised of a roof-contact region and a wall-contact region which form a right angle to achieve a flush pressure contact connection with a portion of a wall and a portion of a flat roof at the roof edge of a flat roofed building, said wall contact region being connected in perpendicular relation to a connecting end of said first insertable connecting member and to a connecting end of said second insertable connecting member.   
     
     
       3. A ladder support according to claim 1, further comprising: a first stop bolt connected to the insertable end of said first insertable member;   a second stop bolt connected to the insertable end of said second insertable member; and   wherein said first stop bolt is for preventing movement of said first insertable connecting member in the direction toward said second insertable connecting member and said second stop bolt is for preventing movement of said second insertable member in the direction toward said first insertable connecting member when said ladder support is connected to a ladder.   
     
     
       4. A ladder support according to claim 1, further comprising: a first bar support connected to a connecting end of said first insertable connecting member, and said first bar support being connected to a first lateral end of said building contact member; and   a second bar support connectable to a connecting end of said second insertable connecting member, and said second bar support being connectable to a second lateral end of said building contact member.   
     
     
       5. A ladder support according to claim 4, further comprising: means for bolting said first insertable connecting member to said building contact member and to said first bar support.   
     
     
       6. A ladder support assembly according to claim 5, for bolting said first insertable connecting member to said building contact member to and said second bar support. 
     
     
       7. A ladder support assembly for use on flat-roofed buildings, comprising: a building contact member for making contact with a flat roof and a wall proximate to a roof edge;   a first insertable connecting member connected to said building contact member;   a second insertable connecting member connected to said building contact member in such a manner that a hoisting space is created between said first insertable member and said second insertable connecting member;   a ladder having a plurality of tubular rungs having cavities which are shaped to accommodate and secure an insertable end of said first insertable connecting member and an insertable end of said second insertable connecting member; and   wherein said insertable end of said first insertable connecting member and said insertable end of said second insertable connecting member are inserted into a cavity of a tubular rung of said plurality of tubular rungs so as to connect said insertable ends to the tubular rung such that when said building contact member is in contact with a flat roof of a building said first insertable connecting member and said second insertable connecting member are substantially parallel to the ground upon which said ladder is based.   
     
     
       8. A ladder support assembly according to claim 7, further comprising: a winch assembly connectable to any one of the plurality of rungs of said ladder.   
     
     
       9. A ladder support assembly according to claim 8, wherein said winch assembly comprises: a winch connected to a ladder hook equipped with a safety latch for attaching said winch to any one of the plurality of rungs of said ladder;   a cable connected to said winch; and   means for attaching a load to said cable.   
     
     
       10. A ladder support according to claim 7, wherein: each tubular rung of the plurality of tubular rungs of said ladder has a cavity whose cross-sectional side view reveals a shape to accommodate and secure the insertable end of said first insertable connecting member and the insertable end of said second insertable connecting member.   
     
     
       11. A ladder support according to claim 10, wherein said cavity has a "D" type shape. 
     
     
       12. A ladder support assembly to enable a heavy load to be lifted to a flat roof of a building by a single individual, said ladder support assembly comprising: a ladder having a plurality of tubular rungs with each rung of said plurality of rungs forming a cavity which is horizontally accessible from either side of said ladder;   a building contact member having a planar roof-contact region for realizing a flush pressure contact connection with the flat roof of the building, said building contact member having a planar wall-contact region for realizing a flush pressure-contact connection with a wall of said building, said planar roof-contact region and said planar wall-contact region connecting at right angles to cover an edge of the flat roof,;   a first insertable connecting member and a second insertable connecting member in mirror image relation to one another and forming a hoisting space therebetween, said first insertable connecting member connected to said planar roof-contact region at one lateral end of the building contact member and said second insertable connecting member connected to said planar roof-contact region at the other lateral end of said building contact member, said first connecting member having an insertable end inserted from one side of the ladder into a cavity formed by one tubular rung of said plurality of tubular rungs, and said second connecting member having an insertable end inserted from the other side of the ladder into the cavity formed by the one tubular rung of said plurality of rungs; and   a winch assembly connected to a rung of said plurality of rungs which is positioned above the flat roof of the building such that the heavy load can be hoisted to the flat roof of the building through the hoisting space.   
     
     
       13. A ladder support assembly according to claim 12, wherein said planar wall-contact region and said planar roof-contact region of said building contact member are integrally connected. 
     
     
       14. A ladder support assembly according to claim 12, further comprising: a first bar support connected to the planar roof-contact region of said building contact member and connected to said first insertable connecting member;   a second bar support for connecting to said planar roof-contact region of said building contact member and connected to said second insertable connecting member.   
     
     
       15. A ladder support assembly according to claim 14, wherein said first bar support, said first insertable connecting member and said building contact member are connected by bolts. 
     
     
       16. A ladder support assembly according to claim 15, wherein said second bar support, said second insertable connecting member and said building contact member are connected by bolts. 
     
     
       17. A ladder support assembly according to claim 12, where: said insertable end of said first insertable connecting member is formed by a bending elbow which is integral to said first insertable connecting member, and said insertable end of said second insertable connecting member is formed by a bending elbow which is integral to said second connecting member.   
     
     
       18. A ladder support assembly according to claim 12, wherein the ladder rung to which said winch assembly is connected is positioned above the flat roof of the building such that a heavy load can be hoisted to the flat roof of the building through the hoisting space.